Start children of Mtest in a separate process group to ease killing them. This was actually the only reason we still had subprocess26, but I totally forgot about that since it wasn't documented...
Start children of Mtest in a separate process group to ease killing them.
This was actually the only reason we still had subprocess26, but I
totally forgot about that since it wasn't documented...

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb